Final answer:
The direction a race car travels on a straight level track at a constant speed cannot be determined without additional context, as any cardinal direction could be correct based on the specific racetrack or course layout.
Step-by-step explanation:
The direction in which a race car travels on a straight level track at a constant speed is not provided in the question. The direction a car travels, whether it's southwards, northwards, eastwards, or westwards, can only be determined by the specific context of a racetrack or the intended direction of travel as defined by the race's rules or course layout. Without additional context, any of the four options could be correct. The important concept here is that the car maintains a constant speed and is on a straight track, which means its velocity is constant and there is no acceleration in the direction of motion.